/usr/share/pyshared/trytond/modules/account_invoice/ is in tryton-modules-account-invoice 2.2.1-1.
This file is owned by root:root, with mode 0o755.
..
/usr/share/pyshared/trytond/modules/account_invoice/__init__.py
/usr/share/pyshared/trytond/modules/account_invoice/__tryton__.py
/usr/share/pyshared/trytond/modules/account_invoice/account.py
/usr/share/pyshared/trytond/modules/account_invoice/account.xml
/usr/share/pyshared/trytond/modules/account_invoice/invoice.odt
/usr/share/pyshared/trytond/modules/account_invoice/invoice.py
/usr/share/pyshared/trytond/modules/account_invoice/invoice.xml
/usr/share/pyshared/trytond/modules/account_invoice/locale/
/usr/share/pyshared/trytond/modules/account_invoice/locale/bg_BG.po
/usr/share/pyshared/trytond/modules/account_invoice/locale/cs_CZ.po
/usr/share/pyshared/trytond/modules/account_invoice/locale/de_DE.po
/usr/share/pyshared/trytond/modules/account_invoice/locale/es_CO.po
/usr/share/pyshared/trytond/modules/account_invoice/locale/es_ES.po
/usr/share/pyshared/trytond/modules/account_invoice/locale/fr_FR.po
/usr/share/pyshared/trytond/modules/account_invoice/locale/nl_NL.po
/usr/share/pyshared/trytond/modules/account_invoice/locale/ru_RU.po
/usr/share/pyshared/trytond/modules/account_invoice/party.py
/usr/share/pyshared/trytond/modules/account_invoice/party.xml
/usr/share/pyshared/trytond/modules/account_invoice/payment_term.py
/usr/share/pyshared/trytond/modules/account_invoice/payment_term.xml
/usr/share/pyshared/trytond/modules/account_invoice/tests/
/usr/share/pyshared/trytond/modules/account_invoice/tests/__init__.py
/usr/share/pyshared/trytond/modules/account_invoice/tests/test_account_invoice.py